in taxon extends_fibers_into Craniata <chordates> head neuron projection bundle brain lateral structure cranial neuron projection bundle neuron projection bundle from brain cranial nerve or tract cranial nerve fiber tract Any of the cranial nerves, or their central nervous system analogs (the optic tract, the epiphyseal tract). These analogs are not true nerves, and are instead evaginated sensory afferents emanating from the brain. cranial nerve fiber bundle UBERON:0034713